Solution: Minimum String Length After Removing Substrings
Explore how to apply stack data structures to iteratively remove specific substrings AB and CD from a string. Understand the step-by-step process to achieve the shortest string length by efficiently checking and removing pairs through stack operations. This lesson helps you master a linear time and space solution to a substring removal problem.
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Statement
You are given a string, s, containing only uppercase English letters. You can perform operations on this string where, in each operation, you remove any occurrence of the substrings "AB" or "CD" from s.
Your task is to return the shortest string length after applying all possible operations.
Note: After each removal, the string joins back together, potentially creating new occurrences of "AB" or "CD" that can also be removed.
Constraints:
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